Fuel Cut Control System - Millenia 2.5L & 626
WARNING: This page is about a different car, the 2001 Mazda Protege, 2001 Mazda Millenia, 2001 Mazda MX-5 Miata, 2001 Mazda MPV, and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
- Warm up engine to normal operating temperature and let idle.
- Increase engine speed to 3000 RPM, then quickly release throttle.
- Using screwdriver or stethoscope, listen to each fuel injector for operating sound. Ensure that injectors are not operating above about 2500 RPM.